The average mass atomic mass of neon is 20.179 u.
What is average atomic mass?
The total of an element's isotope masses, each multiplied with its natural abundance, equals the element's average atomic mass. The periodic table shows the average atomic mass.
Calculation of average atomic mass is shown as:
The average atomic mass will be calculated by the formula.
Average atomic mass = ∑ mass × abundance / 100
Given data:
neon-20 = 90.92%
neon-21 = 0.26%
neon-22 = 8.82%
Put the value of given data in average mass formula.
average mass formula = (90.92 × 20 ) +(0.26 × 21) + (8.82 × 22) / 100
average mass formula = (1818.4 + 5.46+ 194.04) / 100
average mass formula = 2017.9/ 100
average mass formula = 20.179
Therefore, the average mass atomic mass of neon is 20.179 u.
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